Perhaps you should try some spelling variations:
cuc thuoc » cua thuoc, cuu thuoc, truc thuoc
hieu van » hieu va, thien van, hieu ve
cham duc » pham duc, cham soc, pham duy
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
dang ha » dong ha, dung ha, lang ha
ky dang » ky nang, ky danh
duc ban » duc tan, duc van, dua ban
su sac » su sach, su cac
su xac » pu xac, su cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (su xac)) ky dang ha noi. ((hieu van) or (lieu va)) cham duc ban hanh tai cuc thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky dang ha noi. ((hieu van) OR (lieu va)) cham duc ban hanh tai cuc thuoc.
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su xac)) ky dang ha noi. ((hieu van) or (lieu va)) cham duc ban hanh tai cuc thuoc*.